Street marker



May 5 1931- v J. Q. sHuNK 1,804,281

STREET MARKER Filed'nec., 12. 1929 Ei-E1- FE-.2.

Patented May 5, 1931 f JOHN Q. SHUNK, 0F BUCYRUS, OHIO STREET MARKER Application filed Eecember 12, 1929. Serial No. 413,560.

rllie invention relates to improvements in spiked-down disk markers used in forming lines for tratlic guiding purposes, crosswalks, safety Zones, parking' areas, etc.

1t is one object of the invention to provide a unique annular support for a concaveconve); marking disk, which will prevent partial or total flattening thereof' under the weight of heavy trucks, wagons, etc., the disk being thus prevented Prom loosening its engagement with its anchoring spike.

A further aim is the provision of a unique spike formed with novel anchoring means preventing it from creeping out ot the pavement into which it is driven.

llith the foregoing in view, the invention resides in the novel subject matter hereinafter described and claimed, description being accomplished by reference to the accompanying drawings.

Fig. 1 is atop plan view of a marker and spike.

nig. 2 is an edge view of the marker and a side elevation or" its anchoring spike.

Fig. 3 is vertical sectional view on line 3-3 ot Fig. 2, the spike being shown in elevation.

Fig. 4 is a top plan view o the annular disk support.

Fig. 5 is a vertical sectional View on line 5-5 of Fig. 4.

Fig. 6 is a horizontal sectional View through the spike, as indicated by line 6-5 of Fig. 3. Y

In the drawing above briefly described, the numeral 7 denotes a concavo-convex marking disk having a central depressed portion 8 and a central opening 9 in said depressed portion. Disposed under the disk 7 is an annular support 10 which contacts with the lower side of said disk and is provided with a flat lower side to rest upon the surface of the street S, upon which the marker is used. The inner diameter of the support 10 is such as to snugly receive the depressed disk portion 8 as seen in Fig. 3, thereby relatively centering the disk and the support.

The support 10 preferably comprises a. flat annular base portion 11 and inner and outer concentric flanges 1 2-13 integral with and projecting upwardly from said base portion, the flange 12 being of greater height than flange 13 and engaging the depressed disk port-ion 8. Both the support 10 and the disk 7 may either be formed by pressing the metal into shape or by casting it.

A unique anchoring spike 14 is provided, said spike having a. head 15 at its upper end, a pointed lower end 16, an enlargement 17 between its ends' for anchoring purposes, nand a cylindrical enlargement 18 directl under the head 15 and integral with tlielatter, the lower end 190i said enlargement 18 being downwardly tapered to the smallest diameter of the spike.

ln forming the anchorage enlargement 17, diametrically opposed sides of the spike 14 are pressed inwardly as shown at 20, thus causing bulging of the spike in a direction right angles to the line of pressure, to form said enlargement. This enlargement 17 is of a maximum diameter to pass freely through the opening 9 of the disk 7, and when the spike is driven into the street S, said enlargement displaces some of the paving material which latter creeps back and snugly surrounds the spike, tightly embedding the latter. The enlargement 18 is of a size to completely till the opening 9 and hence radial shifting of the disk 7 upon the driven spike is prevented. Tere it not for this enlargement 18, only a loose connection could be provided Abetween the spike and disk for the opening 9 is necessarily ot greater diameter than the smaller diameter 01: the spike 14, in order to permit passage of the anchoring enlargement 17 through said opening, but by the provision of said enlargement 18, a tight connection between spike and disk is insured.

It will be seen from the `t'oregoing that a novel and advantageous construction has been provided in which -danger of distorting the disk under the weight of heavy loads is prevented, and in which the anchoring spike is held against creeping from the pavement into which it is driven. The details disclosed for obtaining these results, are

preferably followed, but Within the scope of the invention as claimed, variations may be made.

I claim 1. A street marker comprising a concavoconvex disk having a depressed cent-ral portion and a central spike-receiving opening in said portion, and an annular support under said disk of considerably less diameter than the latter, said support comprising a fiat base portion for Contact With the street, and inner and outer concentric fianges rising from said base portion and contacting with the lower side of the disk, said inner flange surrounding said depressed disk portion to relatively center the disk and support, said disk being suiiciently stifl1 to prevent depression between its supported portions under the Weight of heavy vehicles.

2. In a street marker, an annular support for a concavoconveX marking disk, said support comprising a flat base portion of considerably less diameter than the disk with which it is to be used and inner and outer concentric flanges integral with and rising from said base portion.

3. In a street marker, an annular support for a` concave-convex marking disk, said support comprising a flat base portion of considerably less diameter than the disk with which it is to be used and inner and outer concentric fia-nges integral with and rising from said base portion, the inner flange being of greater height than the outer flange.

In testimony whereof I have hereunto affixed my signature.

JOHN Q. HUNK. 

